484.cpp

/**
 *                                   ____
 *       ____ ___  ____ ________  __/ __/
 *      / __ `__ \/ __ `/ ___/ / / / /_
 *     / / / / / / /_/ / /  / /_/ / __/
 *    /_/ /_/ /_/\__,_/_/   \__,_/_/
 *
 *    @link : https://the-redback.com
 */
#include <bits/stdc++.h>
using namespace std;
#define inf       HUGE_VAL
#define mem(a, b) memset(a, b, sizeof(a))
#define mod       1000000007
map<int, int> mp;
vector<int> v;
int main() {
    char a[50];
    int ret = 0;
    int n, i, k, r, s;
    int tc, t = 1;
    while (~scanf("%d", &s)) {
        if (mp.find(s) == mp.end()) {
            mp[s] = 1;
            v.push_back(s);
        } else
            mp[s]++;
    }
    for (i = 0; i < v.size(); i++) printf("%d %d\n", v[i], mp[v[i]]);
    v.clear();
    mp.clear();
    return 0;
}